A 123 N crate with a mass of 12.6 kg is sitting on a shelf that is 4.9 m above the factory floor. What is the potential energy of the crate? Show all 3 steps. Be sure to include your units for each step and for your final answer.

605 joules

Explanation:

Potential energy is the energy possessed by a body at rest.

Potential energy = Mass m x Acceleration due to gravity g x height h

In this case,

Mass of crate = 12.6 kg

Acceleration due to gravity = 9.8m/s^2

Height above factory floor = 4.9 metres

P. E = mgh

= 12.6kg x 9.8m/s^2 x 4.9m

= 605.052 = ( 605 joules of energy approximately)

Thus, the potential energy of the crate is 605 joules

convex lenses are thicker at the middle. rays of light that pass through the lens are brought closer together (they converge). a convex lens is a converging lens. when parallel rays of light pass through a convex lens the refracted rays converge at one point called the principal focus.

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